Profile photo of Kathleen E. O'Leary

Kathleen E. O'Leary

Arbitrator Mediator Neutral Evaluator Special Master
Orange County, CA, United States

About

With a judicial career spanning over four decades, this neutral served as the Presiding Justice of the California Court of Appeal, Fourth Appellate District, Division Three. Her extensive background includes presiding over thousands of appellate cases and serving as a trial judge in the Orange County Superior and Municipal Courts. She has handled a vast array of complex disputes involving commercial litigation, employment matters, family law, and public agency issues, bringing deep expertise in both trial and appellate procedures to her mediation and arbitration practice.

Practice Areas

Business & Commercial Civil Litigation Civil Rights Employment & Labor Family Law & Divorce Government & Administrative Healthcare & Life Sciences Insurance Personal Injury & Torts Real Estate & Property

Professional Experience

Presiding Justice
California Court of Appeal
Fourth Appellate District
Division Three
2011–2022
Associate Justice
California Court of Appeal
Fourth Appellate District
Division Three
Judge
2000–2011
Orange County Superior Court
1986–2000
Presiding Judge
Orange County Superior Court
Judge
1998–1999
West Orange County Municipal Court
1981–1986
Private Law Practice
1975–1981
Public Defender's Office (1975)

Publications Leadership

  • Frequent lecturer on appellate practice and judicial ethics for the Center for Judicial Education and Research (CJER)
  • Contributor to various California litigation and appellate practice guides
  • Keynote speaker at numerous Orange County Bar Association events
  • Leadership roles in the Judicial Council's Advisory Committees on Civil and Small Claims and Access and Fairness

Positioning Takeaways

A highly experienced former Presiding Justice who offers authoritative insights into appellate strategy and complex civil litigation. Her background as both a trial and appellate judge makes her uniquely qualified for high-stakes neutral evaluations and settlements.

License & Certifications

  • State Bar of California

Education

J.D.
Southwestern University School of Law
1975
B.A.
Loyola Marymount University
1972

Distinction

One of the longest-serving female jurists in California history, known for her leadership in improving access to justice for self-represented litigants.

Reputation

Recognized by legal professionals for her exceptional preparation, balanced temperament, and ability to navigate highly sensitive or legally complex disputes with clarity and fairness.